Staple binder



'Feb.- 9, 1926. 1,572,018 D. L. IRVIN STAPLE BINDER F'ild Dec. 15, 1921 Inven for.

I oNirso STATES Patented Feb, 9, 19 26.

PATENT orrics,

DANIEL L. IRVIN, or o RwENsvILLE, PENNS LVANIA, ASSIGNOR To A. H. rnvrn COMPANY, LNG, CURWENSVILLE, PENNSYLVANIA, A CORPORATION.

STAPLE BINDER,

Application filed Decen1berg13,1921. Serial No. 522,084 2 'To. all whom it'mag concern: p

Be it'known that I, DANIEL L. InviN, a citizen of the United States,residing atCurwensville, in the county of Cleariield and State of Pennsylvania,'have invented certain new and useful Improvements in Staple Binders, of which the following is a specification. 1 p I My invention relates toimprovements in staplebinders, of the form shown in the application filed by myself under date of October 20, 1921, Serial No. 509,067, and the object of my improvement is to incorporate in a staple binder of the general form mentioned means for guiding the individual staple that is driven by the plunger. whereby said individual staple will cooperate vwith the. plunger and anvil for effecting the binding of materials that are operated upon so as to improve the eflicie-ncy of the staple binder. V p a In the accompanyingdrawing:-

Figure11 is a sideelevation'ot my im-- proved staple binder.

Figure 2 is a plan View of the same.

I FigureS is a front elevation of the same.

Figure iis a side elevation on an enlarged scale and in part broken away. I

Figure 5 is a. View corresponding to Fig. l with the parts in a different position.

Figure 6 is a'plan view of the sliding sleeve and a portion of a staple strip shown in broken lines.

Figure 7 is a sectional view on the line 77 of Fig.6.

Figure 8 is a perspective View of the sliding sleeve. 7 j I Figure 9 is a fragmentary view of the interiorof one of the side plates. 1

Figure 10 is a sectional view on tl1eline 101 O of Fig. 9. j

Figure 11 is a perspectiveview on a still further enlarged scale of part of one of the staple strips. V

Figure 12 is a plan view of the blank for the sliding sleeve.

The staple binder -to which any invention is applied may correspond in its general form to that shown and described in the application mentionedor to any other form that operates on-a "staple strip of um form shown in Fig. 11 forsevering the individual staples from said strip and driving. and clenching the same, so that a brief description of the general'structure will suflice;

buch general structure may comprise ,a

base 10 having at the front end the anvil 1.1

for clenching the staples 12 in cooperation 'with the plunger 13 afterthey have :been

severed from the staple strip and are forced downwardly by the continued movement of the plunger, said staple strip being composed of a series of individual-staples 12.

At the rear end of the-base 10 is a pair of upstanding. ears 14, positioned in spaced relation, that support the pivotal pin 15.

The base 10 serves asthe fixed member, and a moving member, designated generally by the character 16, is operatively connected thereto by the pivotal pin 15.

A pair of ways 17 at the front part of the moving member 16, positioned in spaced V relation, engage with the side edge portions ofthe plunger 13 and serve to guide theplunger in its upward and downward movement. 7

The filler piece bottom of the moving member16, opposed to the base 10, is positioned between the two side plates 19 of the frameor casing; haswits upper portion 20 reduced'in width so as to serve as the guide for the staple strip; supports by its front end the die 21;

supports by the lower portion 22 suitable dowel pins 23 for positioning the side plates 19; and has the rear end portion extended between the ears-14 and pivotally supported by the pin 15.

The said lower portion 22als0 has holes for the two holding screws for holding the side plates 19 in place, comprising the screw 24 at the rear and the screw 25 at the front,

The front screw 25 servesalso as the means for holding the die 21 in place, said die 21 being in the form of aremovable piece.

The upper part of the casing for the moving member 16 is formed by the side plates- 19 which have their body portions positioned in spaced'relationto provide a housing for the staple moving or feeding mechanism that" cooperates with the plunger 13. The. form of the said upper part of the casing is gen erally triangular, with a sloping or inclined rear and upper wall 26., and theciosure, for

18 that extends along 1-119,

ed by :1, log 31 on the plunger it]. and coinprises n :teednig ponl 353 mud n holding piin'l The ti'eedinp; pnwl 32 is supported h} :i pivotully sup iorted dog fill, the letter ltnrint: n lug 35 that; eooperutes with the nose ill, on the plunger 1; and n upringr Elli :serros to position the said feeding; pawl 32 relatively to the dog A spring 3? serves to poaiition the holding); pawl 33.

The individual staples 'lil ore of ti as is usual, ond they are contorted it by means of eonneetinp; necks 23% that to inter-connect the yoke portions 39 at the adjacent individual staples 12, whereby there is provided n luelthone structure to that extendn rontinuounly from end to end of the staple strip, staid strip on :1 whole lwing' designated hy the eluirnrtor -l t.

The yoke portions 3i) extr id ti'nnsrersely across the backbone 4t) and in use the (Utilhined structure formed h sold yoke p tions 39 and the nezrlls 3S, and emistitrrtiop; the backbone 10, us descrihed, rests upon the upper face of the reduced, upper portion on of the tiller piece 18.

The legs 4-2 ot the individual etupleu hang down rardly trout the ends of the yoke portions 39 and travel in the Sliders 4-2, at the sides of: the reduced, upper portion ill), which spaces 4: :we Cloned on the outer sides by the side plutes; '19.

Thus said reduced upper portion it) oi t W tiller piece 18 serves; on the pgnide or uupport for the staple strip it and is the port thot has the cutting edge at the front end, tor cooperating with the cutting" on 1 1 iluuger Theouttinpgedoe l port or upper portion Qt} in i' he intent-oi with the tiller piece it; or may he provided on it removable and :uljuotuhle die :Zl, on SllOWIl.

The cutting; edge 53 on the ltltttfitt l3, opern on to sever the noel; 38 no the plunger is: lowered and the continued movement oi? the plunger .13 sorren to drive the FtHtt'ttl staple 1:3 nlong the trhnnnel -t" ltetu'een the tiller piere 1S und the oppoued front Wnll portions LT ot the wars Lit. Previo nl to ht ing severed the end staple 'li'l in held orerhanging the tiller pier-e 18 t ut the upper portion of the elninnel ill and with the legs eons l2 held uguinut the trout wall un'tions 47, the projectinp, end portion oi. the neck 38 thut was letthy the previous out being housed within the space 48 between the opposed edges ot said trout Wall portions 1-? of the whys: ll.

The means torguidinggj the staple will now he considered.

Eluid means eon'i 'irineu sliding Sleeve structure otlthot tits; around the plunger .13 and mounted thereon tor sliding movement and is itself udupted to slide in the ways 17, sold elewo otruettn'o 50 serving i'irtunlly us it lining]; for the suid ours; iii". The lower end portion ot uuid. sleeve strut-tore 50 extends around the stuple t2.

Jr opt-ing- 51 is: interposed between the sleeve structure Ziitl und the plunger 13, at

illti trout ptiu'tion, no shown, and serves to prruluee l :i'rietionot holding elli'eet whereby the puts will he held in n particular reh1 titre poo Lion until dniturhed 1n a positive intunjter and relative himgitudinnl, sliding moreiuent in et't'eeted.

The plungor .13 carries with itself the sleeve structure 550 genera lly in its upward o l? some port, of the .4"

.tcruciature. oi; the soul: 28 or the plunger (nun-ailing spring; 29 at; the

l upper end.

The plunp'er til hue on the trout :hu-e :1 pair ot rrro lttlltif; 33 tl at register with. o if-slurped ruuwr'urtlly direeted. otli-szetwti l; in the spring;- 51 in the extren'ie positions of the uieero structure tit) on the plunger t3.

The opting 5 t ot the some length as the uloevo structure I'll) undohuts ntg'zlinnta the on ronturt tunes: on the sleeve. s-rtrurture so it; it in pouitiroly limited in its: moreu'tent alone the plunger in the the manner d sleeve stirtu-tnre. l lte lug or none 31 on the plunger 13 is pu t1 ol :1 tin 55 thut; extends lougittnlinolly ulong the rear t'uro o t' the plungl er us in the other ntrurttu'er referred to.

The sleeve tit) has in; ronr null portion of intorrtmted lorm, rtnuprieiug tu'o oppooed nod uimitur. inwardly dirertetl wine's or .thutges fit) that urn uepornted hr :1 .eporeST, which epoee hi iu'orideu cleurunoe tor the tin mentioned ontl also tor other ports in rertuin pos-itionu, such as; the die 9'1 and the pool; i-ltl thot eonneots :uljtu'ent Staples 112 und n'hieh under toperntiiur renditions ore in the some rertieul plane on sold in l t, in itllpOt'i'z'tlit} to note that under ouch opernt in couditionn the \vings fit; will register with the spore one on ouch Shh? oi. the

, tween the adjacent legs 42 of the staples is bounded by the side edges'59.

mentioned in each case. The functions of said wings'56 is-to serve as a guide-for the last individual staple 12 during the operations er severing the said staple from the staple strip and also during its downward movement after being-so severed responsive to the downward movement of the plunger 13 in substantially the usual manner. Such guiding .by the wings 56 is, however, confined to cooperation with the rear edge portions of the staple 12 that is being operated upon.

The cross-section of the sleeve structure 50 is such as to provide a pair of channels 58 on opposite sides that are the counterparts of the ways 17 and that themselves serve as ways for the side edge portions 59 of the plunger 13 during portions of the movement under operating conditions.

Thatis to say, the ways 17 serve as slide ways for the movement of the plunger 13 and the sleeve 50 combined during a part of the vertical movement ineach direction of the plunger 13 and for the remainder of such movement the sleeve 50 serves as a lining for the ways 17 and the plunger travels with the channels 58 serving asguide-ways in cooperation with the side edges 59 of the plunger 13.

The staple 12 to be operated upon is directly under the part of the plunger 13 that By projecting the sleeve 50 below the plunger 13 that lower portion 52 thereof is adapted to serve as a lining for the channel 46 so that the space bounded by the two channels 58 serves as the chute or pas-- sage for the staple 12 that is being driven, and the parts are constructed and arranged so that said sleeve 50 cooperates with the staple 12 in the manner mentioned.

The cross-section of the sleeve 50 is completed by means of a U-shaped connecting portion 60 that houses the forwardly eX-' tending body portion 61 of the plunger 13 and which has sufficient extent to house also the spring 51 which serves as the frictional holding member, as described,

The front wall 63 of the U-shaped connecting portion (30 is provided with an opening 64 of appreciable length through which themiddle portion of the spring 51. is exposed.

The channels 58 are each bounded on the rear by one of the wings 56, on the front bya generally similar wing 65, and at the outside by the side wall 66 that interconnects the opposed wings 5G and 65. 7

Thus the front wings or walls 65 are adapted to cooperate with the front edge portions of the staple12 in the same manner as the rear wings or walls 56 are adapted to cooperate with the rear edge portions thereof. 1

Also, the side, interconnecting walls 66 cooperate with the side faces'of the legs 42 ofthe staple 12. "Thus the walls 56, 66,-,ai'id 65 of the channels 58 serve in each case as positive guides for one of the legs 42 and the two channels cooperate as a guide for the staple as a The individualchannels each coop-v whole. erate with three side faces or edges of the individual edge and the structure formed by the combination of the two channels 58 00- operates with the four sides or faces of the staple as a whole.

A part of the lower portion 52 of the sleeve 50 at the sides and rear is cut away, as indicated at 67 to provide clearance for the legs 42 and yoke 39 in feeding the staple strip forward after the end staple has been severed and driven, such feeding corre sponding to the upward movement of the plunger 13. This construction permits of having excess length for the sleeve 50 for contacting with the base or anvil for limiting the downward movement of the sleeve before the plunger has completed 'its downward movement.

In operation, the important detail resides in the fact that with the plunger in its uppermost position the sleeve projects downwardly below the'bottom face thereof. Thus as the plunger is forced downwardly it carries with itthe sleeve and the lower portion '52 of the latter is adapted to engagewith the staple before the plunger operates upon the staple strip; I.

Finally the sleeve loses its lead over the plunger and this is restored on the reverse movement.

During'shifting movements of the sleeve and plunger relatively one to the other the V-shaped oif-set 54 in the spring 51 moves along the space between the notches or recesses 53 on the plunger 13.

By cutting away the corner 67 of the lower port-ion 52 of the sleeve 50 as defeeding said strip along said bar, a. plunger having a cutting edge for cooperating with the cutting edge on the bar for cutting said staple strip, a guide structure enclosing said plunger, a sleeve interposed between said guide structure and plunger, a spring operative to provide a frictional holding eflect each side a three sided channel Wall and a downward extension of one of the walls 1n line with the staple strip, and said sleeve 10 being operative to slide along said plunger responsive to contacting with said base during downward movement of said plunger.

DANIEL L. IRVIN. 

